參數(shù)資料
型號: HD4048412
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer
中文描述: 4位單片機
文件頁數(shù): 112/125頁
文件大?。?/td> 471K
代理商: HD4048412
HD404849 Series
112
BR AAA
AAA NOP
256 (n – 1) + 255
256n
BR AAA
BR BBB
256n + 254
256n + 255
256 (n + 1)
BBB NOP
Figure 94 Branching when the Branch Destination is on a Page Boundary
Note that the HMCS400-series cross macroassembler has an automatic paging feature for ROM pages.
Zero-Page Addressing Mode:
A program can branch to the zero-page subroutine area located at $0000–
$003F by executing the CAL instruction. When the CAL instruction is executed, 6 bits of immediate data
are placed in the six low-order bits of the program counter (PC
5
–PC
0
), and 0s are placed in the eight high-
order bits (PC
13
–PC
6
).
Table Data Addressing Mode:
A program can branch to an address determined by the contents of four-
bit immediate data, the accumulator, and the B register by executing the TBR instruction.
P Instruction:
ROM data addressed in table data addressing mode can be referenced with the P instruction
as shown in figure 93. If bit 8 of the ROM data is 1, the lower eight bits of ROM data are written to the
accumulator and the B register. If bit 9 is 1, the lower eight bits of ROM data are written to the R1 and R2
port output registers. If both bits 8 and 9 are 1, ROM data is written to the accumulator and the B register,
and also to the R1 and R2 port output registers at the same time.
The P instruction has no effect on the program counter.
相關(guān)PDF資料
PDF描述
HD4048412FS 4-Bit Single-Chip Microcomputer
HD4048412H RELAY BASE
HD4048412TF 4-Bit Single-Chip Microcomputer
HD404848 4-Bit Single-Chip Microcomputer
HD404848FS 4-Bit Single-Chip Microcomputer
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD4048412FS 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD4048412H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD4048412TF 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-Bit Single-Chip Microcomputer
HD404848 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD404848FS 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer